Answer:
alluvial Formed by sand or mud left by flowing water.
axis Straight lines about which a geometric figure rotates.
basin The land drained by a river.
contiguous Adjoining or touching.
delta Triangular piece of land made by deposits of mud and sand at the mouth of a river.
distributaries River branches flowing away from the main stream.
equator Imaginary circle around the middle of the earth.
equinox When the sun's center crosses the equator and day and night are of equal length everywhere.
estuary Broad mouth of a river into which the tide flows.
foci Plural of focus; central or meeting points.
glacier A large body of ice moving slowly down a slope.
solstice Time of year when the sun is farthest north or farthest south of the equator.
sphere Globe; round or ball-shaped object.
Explanation:
